package com.example.backendhjh.config;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

@Configuration
public class JacksonConfig {

    @Bean
    public ObjectMapper objectMapper(Jackson2ObjectMapperBuilder builder) {
        // 创建JavaTimeModule并配置日期时间格式
        JavaTimeModule javaTimeModule = new JavaTimeModule();
        javaTimeModule.addSerializer(
                LocalDateTime.class,
                new LocalDateTimeSerializer(DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss"))
        );

        // 构建ObjectMapper
        return builder
                .modules(javaTimeModule)
                .build();
    }
}